INTERNATIONAL ACCELERATOR RADIOLOGICAL PROTECTION E-MAIL (IARPE) NEWSLETTER "The Official Publication of the Accelerator Section of the Health Physics Society" (with Contributions from International Correspondents) ====================================================================== June/July 1994 Vol. 3, #3 ====================================================================== OFFICERS ====================================================================== President: Nisy Ipe, SLAC President-Elect: Bob May, CEBAF Past President: Geoff Stapleton, SSC Secretary: Steve Musolino, BNL Treasurer: Joe McDonald, PNL Newsletter Editor: Lutz Moritz, TRIUMF Directors: Lorraine Day (1997) Don Cossairt (1997),FNAL De Vaughn Nelson (1996) Paula Trinoskey (1996),LLNL Jerry Miller (1995), LAMPF Carter Ficklen (1995), CEBAF >From the Editor Lutz Moritz ====================================================================== Here, finally, is the Newsletter with apologies to subscribers and contributors. The editor attended the annual Health Physics Society meeting in San Francisco and then immediately went on holidays. There was no need this summer for exotic travel because the weather here in Vancouver has been fantastically good for just lying on the patio or the beach (slathered in sunscreen of course!) and the winds have been great for sailing. So, although I occasionally received an accusing stare from the computer terminal screen in the den, I managed to successfully ignore it until my return to work at TRIUMF. For those of us who managed to attend the annual meeting of the Health Physics Society in San Francisco the highlight of that meeting was of course the varied scientific session so ably organised by Nisy Ipe and her colleagues. The business meeting of the Accelerator Section marked the end of the term of office as president for Geoff Stapleton who, despite a year of personal disappointment, must be congratulated on a successful year of leadership which saw an expansion both of the membership and the activities of the section. The new president of the section is Nisy Ipe, whom we all know as the founder of this Newsletter, and from whom we will all expect great initiatives. I think she has already started! >From the President Nisy Elizabeth Ipe ====================================================================== Dear Friends: It is indeed an honor and a privilege for me to serve you all as President of the Accelerator Section of the Health Physics Society. I will do my best to promote the interests of the Accelerator Radiation Protection Community both on a national and an international level. We will be faced with many challenges in the future. The design and construction of new machines capable of operating at very high energies and currents will test the prowess of the accelerator radiation or health physicist. Existing computer codes will be stretched to their limits, the need for more data and improved models will become blatant. Significant strides will have to be made in the development of dosimeters and instrumentation. Are we prepared? Furthermore, at least here in the U.S. the pendulum has swung too far in the regulatory environment. Can we bring the pendulum back to the center? I believe the answer to these questions is YES! If we join forces and share our knowledge and expertise we can be prepared to face the daunting tasks that lie ahead. We are a very small community but in unison our voices can be heard loud enough to have an impact on our regulators and their regulations. The Accelerator Section, though American in origin, is definitely international in flavor and mission and provides an ideal forum for national and international cooperation and exchange. To this end, the Executive Board of Directors has given me the "go ahead" to appoint an International Advisory Board (IAB) consisting of representatives from various parts of the world. The IAB will provide advice to the Executive Board of the Accelerator Section on activities of the Section. Members of the IAB will be responsible for disseminating information about the activities of the Accelerator Section to the organization in their country and making the interests and needs of those organizations known to the Section. The IAB will also be responsible for planning and conducting international workshops, conferences, meetings etc. Each appointee to the IAB must be a member in good standing (at the time of appointment) of the Accelerator Section. Individuals interested in serving on the IAB should notify me before August 10, 1994 after consulting with members of the organization in their home country. I would like to have representatives from each of the following countries or regions: Japan (1), Italy (1), Germany/Switzerland/France (1), China (1), Taiwan (1), U.K. (1), Former Soviet Union (1), Korea (1), South America (1). This list is by no means comprehensive and countries from which we do not have subscribers are not listed. An application form for Accelerator Section membership is included in the Newsletter. I look forward to hearing from many of you. As always I am open to suggestions and new ideas for Section Activities. The success of the Section will depend on the participation of you, the members. So please get involved! I look forward to working with all of you. Nisy SECTION BUSINESS ====================================================================== Minutes of the Executive Board Meeting of the Accelerator Section (June 29, 1994, San Francisco) Board Members Present: Nisy Ipe (President-Elect), Bob May (Secretary), Joe McDonald (Treasurer), Jerry Miller (Director), Lutz Moritz (NL Editor), Steve Musolino (Director), DeVaughn Nelson (Director), Geoff Stapleton (President and chair), Ralph Thomas (Past President), Paula Trinoskey (Director) 1. Minutes Minutes of the previous meeting were adopted having been published in the Newsletter. 2. Draft agenda for Section Meeting Approved 3. Nominations to Board membership Jerry Miller (Chair Nominations Committee) proposed a slate of nominations for office for the following year. He also spoke about a proposal for extending the term of office for the Secretary and also Treasurer from 1 year to 2 years. It was agreed that the slate and the changes to the Secretary and Treasurers term should be presented to the Section meeting. 4. Preparation of Section by-laws Carter Ficklen (Parliamentarian) reported on the development of the by-laws. He stated that Ken Miller (HPS rules committee) had reviewed the by-laws and has so far not indicated any problems. A suggestion from the floor that the executive Board positions be explicitly set out in the by-laws was adopted for the draft. 5. Any other business (a) Consideration of the need to archive or safeguard the section records. It was agreed that copies of all correspondence about Section affairs should be forwarded to the Secretary for keeping and subsequent forwarding to the HPS. It was also agreed to nominate Ted DeCastro as the Section member responsible for archiving all copies of the Newsletter on computer disc. (b) IRPA Affiliate "Advisory Board" Nisy Ipe raised the question of nominating an IRPA Affiliate "Advisory Board". It was agreed by the Section Board that special appointments could be made by the President of the Section with the consent of the Board. (c) Section Members directory. There was some concern that the membership directory was no longer up-to-date; there was a clear need for a person to take over the work so ably initiated by Harry Howe. It was agreed that the new Section President should seek someone to take on this task. There being no other business the Chair adjourned the meeting. ====================================================================== Minutes of the Meeting of the Accelerator Section (June 29 1994, San Francisco) Agenda: Introductions and Apologies for Absence Minutes of the Previous Meeting President's Report President-Elect's Report * 1994 Program Committee Secretary's Report Treasurers Report Membership Drive Committee Reports Parliamentarian/Rules * Charter * By-laws Awards Newsletter History Training/NRRPT Directory Bibliography/Information Scientific/Technical Long Range Planning Board Members Reports Nominations for Office/ Nominating Committee Elections to Office Logo Competition Other Business Adjourn ---------------------------------------------------------------------- The meeting was opened with an introduction of the current Officers, Board Members, and Committee Members. Frank Masse' proposed that the minutes of the last meeting (which were published in the IARPE Newsletter) be accepted. Ralph Thomas seconded the motion which was passed unanimously. A report by Geoffrey Stapleton, the current and out-going President followed. The report is summarized below: Two mid-year meetings were held, Albany, NY and Arlington, TX. The minutes of both meetings are available. The IARPE Newsletter continues to be very successful under the editorship of Lutz Moritz and his team. We have made the move to separate the offices of Secretary and Treasurer. Carter Ficklen (Parlimentarian) has made signifigant progress on changes to the Charter and on drafting by- laws. The History of Accelerator Radiation Protection, edited by Wade Patterson and Ralph Thomas is published and available. Steve Musolino will report on the Membership Drive. Nisy Ipe, President-Elect, will report on International Relations and IRPA8 (April 14-19, 1996 in Vienna) and will also report on the Technical Session for this meeting. Rick Donohue will report on the "Evening Out" plans. The next meetings will be the Mid-year at Charleston, SC Jan 29 - Feb 1 (Training and Education) and the Annual Meeting in Boston on July 23- 27 (Technical Session to be announced). Would like the Technical Panel under the chairmanship of Ken Kase to take a hard look at the possibility of promoting a dedicated accelerator radiation standard source. We now have an awards committee under Frank Masse' (Chair) who will consider ways in which we might recognize, honor and encourage individuals or groups, or augment existing prizes. The logo competition continues! We must be careful about becoming too bureaucratic: * running the section can become an end in itself * [we can] get bogged down in minutiae and points of order * easy to loose sight of the primary purpose for creating the Section * parliamentarian is a very important job in striking a proper balance * [we] must be accountable to the members of the HPS Believe in the importance of promoting the scientific basis of the work: * [we can become] exhausted by endless administrative and compliance matters * too many scarce resources being spent on compliance rather than continuing to make important and needed technical improvements * commend the DOE Accelerator Safety Order and the work that went into it We all want to provide quality programs which must be based on the expertise of accelerator radiation protection specialists. The president concluded with general thanks to all who helped make his term of office so enjoyable. ---------------------------------------------------------------------- The President-Elect addressed the members and spoke about the sucess of the technical program and thanked Ken Kase for his planning efforts. The Secretary had no report. Joe McDonald read the Tresurers Report. He reported on communications with Bert Kramer in the Secretariat's office and indicated that, according to the Secretariat, the member- ship had increased by 30 members to 147. Frank Masse' presented an award to Wade Patterson in the form of an engraved plaque. The wording on the plaque: "Presented to H. Wade Patterson for your initiative and dedication in the establishment of the Accelerator Section of the Health Physics Society-June 30, 1994". Steve Musolino reported that he put a letter in the IARPE Newsletter and mailed letters of invitation to HPS members and that a letter from the President was sent to IRPA Affiliates encouraging them to join the section and contribute to the Newsletter. Lutz Moritz reported briefly on the Newsletter and extended kudos to Vashek Vylet for his assistance. Ted DeCastro volunteered to keep all copies of the Newsletter on diskette and available for downloading via anonymous FTP. Paula Trinoskey indicated that Keith Welch (CEBAF) had received honorable mention from the NRRPT for articles submitted to their Newsletter. Paula also mentioned that representatives from FNAL, CEBAF, SLAC, LBL, LLNL, and Wade Patterson met to discuss accelerator- specific training for DOE Core Course Material. A motion that the new President could set up an International Member Advisory Board was made by Steve Musolino and seconded by Jerry Miller. The motion passed unanimously. It was noted by Nisy Ipe that some of the members have not yet received the directory. It was mentioned by Ralph Thomas that the new Section President should appoint some one take over for Harry Howe in developing and maintaining the membership directory. (Thanks to Harry for all that hard work). Ken Kase, Technical Panel Chair, indicated that it was best to wait on responding to Wade Patterson's letter until ICRP-51 is made available. Ralph Thomas as chair of ICRP-51 gave a provisional account of their draft report and maintained that all the quantities called for in Wade's letter could now be calculated. The matter was therefore deemed to be closed. Additional information, such as access and parking, for the Accelerator Section "Night Out" was provided. Jerry Miller, Nominating Committee Chair, discussed the slate of proposed Section Officers and thanked Geoffrey Stapleton and Bob Mundis for their assistance. Proposed Slate of Officers: President Nisy Ipe President-Elect Bob May Secretary Steve Musolino (two years 1996) Treasurer Joe McDonald (one year 1995) Newsletter Editor Lutz Moritz Directors Lorraine Day (1997) Don Cossairt (1997) Paula Trinoskey (1996 Chair, training NRRPT) Further discussion followed on the separation of the Secretary- Treasurer into separate positions and the progression of officers from Treasurer, Secretary, Presiden-Elect, President, etc. For example, a normal progression would be for Joe McDonald, now Treasurer, to procede to President-Elect. A motion was made by Jerry Miller and seconded by Wade Patterson, that the Secretary remain in office two years to re-establish the correct rotation of officers. A second motion was made by Jerry Miller to strike the wording "on alternate years". The motion was seconded by Scott Schwahn and passed unanimously. This motion established that nominations, for any position, may be taken from the floor and the rotation of officers was not "fixed". Ralph Thomas clarified the process and spoke on the need to establish a comfortable tradition with respect to rotation of officers. Ralph Thomas proposed that the slate of officers offered by the Nominating Committee be accepted. De Vaughn Nelson seconded the motion. The vote was unanimously in favor of accepting the motion. The Officers for the Section this year are: President Nisy Ipe President-Elect Bob May Secretary Steve Musolino (two years 1996) Treasurer Joe McDonald (one year 1995) Newsletter Editor Lutz Moritz Directors Lorraine Day (1997) Don Cossairt (1997) Paula Trinoskey (1996 Chair, training NRRPT) De Vaughn Nelson (1996) Carter Ficklen (1995) Jerry Miller (1995) Carter Ficklen, who accepted the task of developing the Section by-laws, made a motion to accept the by-laws pending approval of the Rules Committee. Ralph Thomas seconded the motion. Frank Masse' indicated that the Rules Committee didn't like the "life membership" provision in the by-laws because it could allow for continued Section membership for those who did not keep their Society membership current. Geoffrey Stapleton clarified that the motion was for the by-laws "as amended". The vote was unanimously in favor of accepting the amended by-laws. Geoffrey Stapleton also gave the "last call" for the Section Logo competition reminding all of the SSCL T-shirt prize for the winning entry. The meeting was adjourned at 2:45 PM on a motion from Wes Dunn which was seconded by too many people to record. Bob May MEETINGS ====================================================================== Accelerator Session, Annual Health Physics Society Meeting - Nisy Ipe ---------------------------------------------------------------------- The technical program of the Accelerator Section at the Annual Health Physics Society in San Francisco was held on June 29th, 1994. The highlight of the day was the keynote address entitled "Synchrotron Radiation and its Applications" by Dr. Arthur Bienenstock, Director of the Stanford Synchrotron Radiation Laboratory and Associate Director of the Stanford Linear Accelerator Center. Here is a summary of the talk as provided by Dr. Bienenstock: The talk began with a description of the Stanford Synchrotron Radiation Laboratory and synchrotron radiation itself. The very high collimation of the radiation, its very smooth spectral distribution and its extremely high intensity were stressed. The use of synchrotron radiation to determine the environments of individual atomic species in complex systems by means of x-ray absorption spectroscopy was next discussed. Among the examples given was the determination of the changes of the surroundings of the iron atoms in hemoglobin as it takes on oxygen and gives it off as part of its biological function. The application of this spectroscopy to the cleanup of nuclear waste sites was also discussed. The report then turned to the use of insertion devices (wigglers and undulators) to produce extremely high intensity and high brightness radiation. One application of this extremely intense radiation is coronary angiography in which the x-ray opaque liquid is introduced through the jugular vein rather than an arterial catheter. This technique makes use of the very large change in x-ray absorption coefficient near the iodine absorption edge. Also discussed was the use of the radiation to get an extremely sensitive analysis of impurities contaminating semiconductor wafer surfaces. Some of the new facilities were then described, as were the challenges for radiation safety associated with them. Dr. Bienenstock's talk was followed by 8 oral presentations. The morning session was chaired by Lutz Moritz (TRIUMF, Canada) and Sarah Hoover (LANL). A meeting of the Executive Board of Directors and a general meeting of the Accelerator Section were held prior to the afternoon poster session. Thirteen posters were presented at the poster session which was chaired by Henry Kahnhauser (BNL) and Jeff Kleck (Varian Associates, Palo Alto). IRPA8 SPECIAL ACCELERATOR RADIOLOGICAL PROTECTION SESSION ---------------------------------------------------------------------- It has been confirmed that there will be a special session on accelerator radiologial protection at the 8th IRPA Congress to be held in Vienna in 1996. Plans call for a number of invited oral presentations as well as one or more refresher courses. IRPA8 will also be soliciting poster presentations for this session when the call for papers is issued. Manfred Hoefert, Nisy Ipe NEWS FROM IARPENL CORRESPONDENTS ====================================================================== News from CERN Manfred Hoefert ---------------------------------------------------------------------- After a very long annual shutdown and a difficult re-starting period, the CERN accelerators are now working again close to their best level of performance. The problems encountered in this first part of the year were mostly due to operator's lack of experience with a new computer control system, but there are also signs of radiation damage as some of the machines are getting old. This situation, and the fact that frequent repairs have to be made by a dwindling number of specialists, is beginning to put some strain on the effort of the RP Group to keep individual doses low. As it is customary at CERN after each long shutdown, a systematic search for radioactive objects has been made over the whole site. This search is performed once a year by the RP technicians and is announced in advance on the CERN weekly Bulletin. Several 1.E5 square meters of offices (included that of the Director General...), of workshops and of parking spaces are inspected with a very sensitive instrument and every year some slightly radioactive items are found, which in one way or another have found their way out of the accelerator tunnels. Sometimes, unexpected sources of radioactivity are found, such as old watch dials, bags of fertilizer or wall plasters. Among this year's findings: three spotlights and an electric motor. The 1993 annual report of the Radiation Protection Group has been published. It contains five chapters: 1. Environmental Radiation Monitoring on the CERN Sites during 1993, 2. Radiation Control on the CERN sites, 3. Radiation Protection Activities around the CERN Accelerators, 4. Personnel Dosimetry, Calibration and Instrumentation, 5. Non-routine Activities of the RP Group in 1993. Among the many statistical data reported: the collective dose registered by personnel dosimeters in 1993 was about 1200 mSv, the lowest ever recorded at CERN in the last 34 years. Unfortunately, there are clear indications that this performance will not be repeated in 1994. Two beam periods of about one week each (in May and July) have been devoted to instrument studies and intercomparisons at the CERN-CEC reference radiation facility in the North Experimental Area. This facility, which is supported by the European Community, has already been described in this Newsletter and has been presented at the last Shielding Conference in Arlington. There is a good piece of news for the future of CERN. In the last June session of the CERN Council, an important step forward was made concerning the vote for the approval of the LHC (Large Hadron Collider) project. A large majority of member country representatives have expressed their favourable attitude. A few others have asked for some time in order to consult their governments. Therefore, the Council has decided to suspend the session, stopping the clock (they do it in Brussels at the EC all the time!) if necessary until the end of September 1994, to allow voting on this item to be concluded. There is a strong hope that by the end of this year the LHC project, so important for CERN and for particle physics, will be definitively launched. Here we are all crossing our fingers. Finally our former DG Carlo Rubia got the green light for a preliminary experiment on the concept of an energy amplifier. The principle is the sustaining of a chain reaction in a subcritical assembly by providing the missing neutrons with the help of a proton accelerator where the beam creates neutrons in spallation reactions. Although with 1E9 protons per burst of 1.5 Gev shot into 3.5 tons of natural metallic uranium the device at CERN will remain largely subcritical a high carat Swiss delegation from Bern came to visit us to discuss this experiment with Carlo's team and RP as representatives for safety. There is also the issue of nuclear safeguards. If your Lab ever likes to venture in this field be assured there are lots of strings attached. Following a miserable cold June "sumer has incumen in" eventually to Geneva with those crazy hazy days much too warm to sip beer or chew on pretzels as the song goes. All those who did not have their free days yet we wish them relaxing holidays. Alberto Fasso and Manfred Hoefert News from LBL Rick Donahue ---------------------------------------------------------------------- The Accelerator Section hosted an evening out at Lawrence Berkeley Laboratory and the Lawrence Hall of Science. We wish to thank all those who attended and hope that their stay in Berkeley was memorable. NEW REPORT R.J. Donahue et al., "Radiation Problems in the Design of a Radioactive Nuclear Beam Facility", submitted to the Proceedings of the OECD/NEA Specialists' Meeting on Shielding Aspects of Accelerators, Targets, and Radiation Facilities, Arlington, Texas, April 28-29, 1994, also LBL Report 35459. This report is available as a PostScript file via anonymous ftp to 128.3.252.168 in pub/ISL/LBL35459.cps. The Dosimetry Office at LBL was pleased to sponsor an IAEA Fellow, Dr. Andras Fenyvesi from the Hungarian Academy of Sciences, Debrecen. Andras was with us from 1 Nov. 93 to 29 Apr. 94, after which he went to a nuclear structure conference in Gatlinburg, TN. During his stay at LBL he worked with Tony Greenhouse in developing a unique readout apparatus for CR-39 neutron dosimeters, and he worked on mathematical models for the prediction of high-energy neutron responses in this material. We were able to get some time on the 88-Inch Cyclotron to investigate high-energy carbon ion recoils in CR-39 as well. Some of the results of our work will be presented at the DOE's Fourth Conference on Radiation Protection and Dosimetry in October, 1994. We were indeed fortunate to have hosted Dr. Fenyvesi at this Laboratory. Rick Donahue News from SLAC Vashek Vylet ---------------------------------------------------------------------- 1. COMMENT ON ACCELERATOR SECTION MEETING We probably all agree that we can be proud for the strong partici- pation of the Accelerator Section at the Annual HPS meeting an the quality of presented papers and posters. My impressions from the Section meeting lead me to believe, however, that there is room for improvement in this particular area. First, some of the speakers were hardly audible beyond the first few rows. The remedy here is probably as simple as fixing the microphone closer to the speaker's throat. My second concern is the fact that the participants were asked to vote on a number of items that nobody was informed about beforehand. Although I don't have any issue with these particular items, I feel uneasy about a procedure that does not allow any time for reflection and may take some people by surprise. I would agree that certain minor items could be handled in this manner. However, it is my opinion that serious matters such as changes of the bylaws should be announced in advance, e.g. in this Newsletter. For the sake of democracy, we should strive to be INFORMED voters. 2. FREE PUBLICATION AVAILABLE UPON REQUEST Copies of "Health Physics of Radiation Generating Machines"; Proceedings of the 20th Midyear Topical Symposium of the Health Physics Society; February, 1987. If you are interested, send request and mailing address to: Roger Sit 3. ACCELERATOR RPPPs (Mike Grissom et al.) i. The US DOE has successfully completed the incorporation of new radiation protection rules into the Code of Federal Regulations as Title 10 CFR Part 835. As a requirement of these new rules, all DOE facilities, including all accelerator facilities, must submit a Radiation Protection Program Plan to DOE by January 1, 1995. This plan must incorporate an implementation schedule that can be completed no later than January 1, 1996. These requirements are in addition to the requirements already being dealt with in implementation plans to the DOE Accelerator Safety Order and the DOE Radiological Control Manual. ii. To date, as far as I can determine, most of the DOE accelerator community has not made great progress in completing their RPPPs. For those of us in the DOE-Oakland Operations area, the DOE Radiation Protection Requirements Implementation Management System software, version 1.0, was delivered during the 39th Annual Meeting of the Health Physics Society in San Francisco, California, during the week of June 27th. However, it is clear that many decisions must be made before the software, designed to produce an RPPP in a DOE standardized format, can be effectively utilized. iii. The DOE-Oakland operations office has established a Radiological Control Quality Improvement Team (RC QIT) for addressing the chief challenges of developing RPPPs and dealing with the RadCon Manual program as well. These challenges are particularly significant for the non-profit contractors operating most of DOE's accelerator facilities, and indeed DOE is starting to recognize the difficulties associated with resource compression at the same time that regulatory pressures are increasing. iv. The RC QIT has requested that I solicit feedback from the other accelerator laboratories as to what their "top 6" radiation protection challenges are. Although this was asked in the context of the requirements for 10CFR835, the top radiation protection challenges may well bear similarities amongst the accelerator laboratories around the world regardless of the specific regulatory drivers. Please send me your particular high priority radiation protection challenges (more or less than 6 as they exist for you) in a brief listing to my internet address as follows: v. I look forward to hearing from the community at large! News from TRIUMF Lutz Moritz ---------------------------------------------------------------------- Under the stewardship of our new director, Dr. Alan Astbury, TRIUMF is actively pursuing an 'alternate future' to the KAON project. It is proposed that approximately a quarter of TRIUMF's future operating budget will be channeled as Canada's contribution (in services and equipment) to CERN. One possibility is that TRIUMF may undertake the high-intensity upgrade to the PS necessary if the LHC is built. It is proposed that another quarter of the budget will be used to build an accelerated radioactive beam facility. At present TRIUMF operates the TISOL (TRIUMF Isotope On Line) facility on the medium intensity proton beamline. Up to 1 microAmpere of 500 MeV protons are used to produce a variety of radioactivities in a thick target. This radioactivity is 'boiled' out of the target by beam heating or by providing external heat and is transferred via a short tube to an ion source where it is ionized and then extracted through a mass analyzing magnet into any one of three beamlines. This allows the delivery of very short-lived radioisotopes to the experimental area outside the proton beam shielding. The proposal is to upgrade this facility to be capable of accepting 10 microAmperes of proton beam current at 500 MeV and to add a system of accelerators (probably an RFQ followed by either a conventional or a superconducting linac) which would accelerate the radioactive ions to several MeV per amu. Experience with the present facility has shown that most of the dose to personnel comes from servicing the target/ion source as long as the loose radioactivity is contained. Therefore the present design effort is focussing on providing adequate radioactivity containment and remote handling capabilities for servicing the target/ion source. The remaining half of the TRIUMF budget would be used to maintain the operation of the existing 520 MeV cyclotron and the meson, muon and nucleon physics program. FROM THE MEMBERSHIP ====================================================================== We welcome the following new subscribers: Joe Vincelli Paul Frame Jerry Thomas Lorraine Day Laurence E. Auman <73002.1706@compuserv.com> Radoslav Radev Wade Patterson ---------------------------------------------------------------------- Those of you involved with the training and implementation required by DOE 5480.25 and the RadCon manual may wish to re-read a note published in 1969. I believe the conclusions are still correct, even today. The citation is: Whole-Body Counting and Bioassay Determinations Made on Accelerator Workers. Health Physics, 17, p. 621-625 (1969). (Note) Patterson, H.Wade, Low-Beer, Anne de G., Sargent, Thornton W. Wade Retirement Report ---------------------------------------------------------------------- Life as a Participating Guest with Special Projects Division is tough! We hear that during the first week in June, Ralph Thomas spent a week in the South of France. The reason for the visit to Cadarache, one of France's Nuclear Research laboratories, was to chair a Joint ICRP/ICRU Task Group on Dose Related Quantities for External Radiation Exposure. In 1991 the ICRP issued a major revision of its recommendations (ICRP Publication 60). This was the first major overhaul since 1977. The revision has important consequences for health physicists and one area of radical change was in the quantities used for radiation dosimetry. The changes are both fundamental and numerical. In 1992 the International Commission on Radiological Protection and the International Commission on Radiation Units and Measurement set up a Joint Task Group to fully explore and understand the implications of these changes for external radiation dosimetry. Members of this international Task Group are: Mr. L.W. Brackenbush (USA); Dr. J.L. Chartier (France); Dr. M.J. Clark (England); Drs. G. Dietze, G. Drexler, B. Grosswendt, N. Petoussi, B. Siebert and M. Zankl (Germany); Richard V. Griffith (IAEA) and Dr. Hans G. Menzel (Commission of the European Communities, Brussels) with Ralph as Chairman. Hazards Control Department old timers will also recognize the name of a former Special projects Division Leader-"Griff", Dick Griffith. Ralph describes the job of chairing an international group of such radiological protection luminaries as rather like that of herding cats! The Task Group has prepared a 250 page report, addressed to both Commissions, describing its findings. Its contents are: Summary Chapter 1. Introduction and Scope Chapter 2. Quantities used in Radiological Protection for External Radiation Chapter 3. Determination of Absorbed Dose Distributions in the Human Body and Anthropomorphic and Other Phantoms. Chapter 4. Limiting and Operational Quantities Chapter 5. Calculated Conversion Coefficients Chapter 6. Relationships between Quantities Chapter 7. Commentary and Suggestions References Appendix- Definitions of Quantities used in this Report Ralph was in Caderache to present this draft report to ICRP Committee 2 (the committee that discusses secondary radiological protection limits). The Committee endorsed the draft, subject to minor editorial change. Now Ralph will present the report to the ICRP in Bethesda and to the ICRU in Gaithersburg in July. Although Ralph tells us his trip was all work, work, work with no fun at all he does admit that the cheese and wine were spectacular! CLOSING THOUGHTS ====================================================================== Graffiti found at TRIUMF: "Due to the present fiscal constraints, the light at the end of the tunnel has been temporarily turned off." Health Physics Society Accelerator Section Application Form: ---------------------------------------------------------------------- HEALTH PHYSICS SOCIETY ACCELERATOR SECTION MEMBERSHIP APPLICATION The HPS Accelerator Section has initiated a system for dues collection through the Health Physics Society. Please complete the following form. Membership is available to HPS members and IRPA affiliates only. 1994 Accelerator Section Dues $5 ($6 IRPA affiliates) ______________________________________________________________________ Please check only one: ______ VISA _____ MASTERCARD _______ CHECK ENCLOSED (Payable to HPS) Card #: ______________________________ Expiry Date: _____________ Card Holders Name: _________________________________(Please Print) Signature: ______________________________________________________ ______________________________________________________________________ Full Mailing Address: __________________________________________________ __________________________________________________ __________________________________________________ __________________________________________________ Telephone:__________________FAX:__________________ E-Mail Address:___________________________________ _____________________________________________________________________ All payments must be made in U.S. dollars and drawn on U.S. banks. U.S. Postal Money Orders, U.S. Travelers Checks, Mastercard, and Visa will also be accepted. Return this form to: Heide Rohland, Membership Manager HPS Accelerator Section Health Physics Society 8000 Westpark Drive, Suite 130 McLean, VA 22102 USA